Criminal Minds star Paget Brewster has revealed researching for the show has made her a bit paranoid.
The 40-year-old, who plays Special Agent Emily Prentiss in the crime drama about an elite team of FBI profilers who analyse America's most twisted criminal minds, revealed she has since installed "Pentagon-level" security at her house.
She said: "My boss gave me the FBI manuals, the text books that the students have to study about sexual homicide and serial killers and serial rapists, and there are photos in those books that you can never erase from your mind, that you really don't want in your mind."